Found on arriving home today that I can turn the car off and remove the ignition key and the engine still runs while I have my foot on the brake pedal.
After a few tests, I've found that if the headlight switch is on either side or dipped/main and the brake pedal is depressed, then the ignition circuit is activated. (I.e. all the usual pre-ignition lights sequence comes up on the dash and the fuel and temp guages energise)
Anyone seen this before and suggest where to start troubleshooting?
2001/51 Plate Astra 2.0DTI Hatchback